JonL wrote:More things: reading module type, serial number, version number always brings different values (or no values at all).

And that was using uProject (Windows).

Doing a "Show Large digit clock" gives the same kind of results: all garbled characters.

More things: reading module type, serial number, version number always brings different values (or no values at all).

One more thing. A while ago I reported that the bar graphs wouldn't show up properly. In uProject I did a large digit test: I placed a "5" and a "6". The result is in the attached picture, which isn't a great result at all. Please, help me solve these issues or I will have to fin...

Hello Troy, I tried another Lnux Machine and the result is the same. Even though I can send text through uProject in Windows, I still can't do it in Linux like I used to. The Linux settings are these: # Select the output device to use [default: /dev/lcd] Device=/dev/ttyUSB0 Size=20x4 Type=lkd Contra...

Hello Troy,

yes, I did all that as I previously stated in a previous post.

Anyway, still can't communicate under Linux.

Hi Clark,

well, I've made a set display, set brightness, I2c Slave Address and AutoTransmit keypresses in uProject and still can't display anything under Linux like before.

Hi Troy,
you're referring to the dot button procedure?

But as soon as I power cycle the display, won't the settings return to the non-default values?

Hi, I managed to set the keypad codes with uProject, but still can't get it working on Linux, which was working fine previously, If I start the lcdproc application, text doesn't show up, but sometimes the screen's backlight turns on and off. I'm afraid some setting could be off, so I ask again how c...

One more thing that could help troubleshooting: the block bar graphs demos in uProject don't show the character blocks all filled, some cells are not highlighted.

Hi Troy, yes, that was it. Did a Set Data Lock 0, and now I communicate with the display without need of the dot button procedure. Anyway, I've got two problems. 1 - the keypad is sending weird characters. Can I set them properly to A, B, C, etc. in uProject? 2- I'm mainly using Linux (lcdproc) for ...

Hi Troy, Thanks for getting back on this. Well, I've tried both the raw data and the MOGD# program, but to no avail. That is, I can only communicate if doing the dot button procedure that forces the 19200 baud rate. Any subsequent power cycles will not allow me to connect to the lcd screen, as if th...

Well, going through uProject (sometimes I don't know what it's doing), I found a Initialize Memory option. Could you give me the memory file to see if I can solve the problem?

It seems that I can only communicate with the screen when power cycling with the dot button procedure.

Subsequent power cycles won't let me communicate with the display.

Well, this is strange now. I manage to comunicate wuth the display through uProject if holding down the lower dot button. If then I save the baud rate as 19200, further attempts won't be able to communicate with the display. So, it seems that I'm stuck here. I was using Lcdproc successfully before, ...

Hi,

after a few tests with the LK204-7T-1U-TCI Serial version, the display shows only garbled characters and even the manual reset process doesn't solve it.